Means for fastening rails to the ties and tie-plates.



I A. VIETOR. MEANS FOR FASTENING RAILS TO THE TIES AND TIE PLATES.

APPUCATION FILED SEPT-l3,1916.

1,256,397. Patented Feb. 12, 1918.

2 SHEETS-SHEET h A. vmoa. MEANS FOR FASTENING RAILS TO THE TIES AND TIE PLATES.

APPLICATION FILED SEPT. I3. 1916.

a d 2 SHEETS-SHEET 2.

SATES PAENT @FIQE.

' ALWIN VIE TOR, 0F WIESBADEN, GERMANY, ASSIGNOR TO THE FIRM 0F GEORGS- MARIEN-ZBERGWERKS- & HITTTEN-VEREIN .A.-G., 0F OSNABRITCK, GERMANY.

MEANS FOR FASTENING RAILS TO THE TIES AND TIE-PLATES.

To all whom it may concern:

Be it known that I,.ALw1N VIii'rou, a sub-- ject' of the King of Prussia, German Empire, residing at Wiesbaden, Germany,- have invented a new and useful Improvement in Means for Fastening Rails to the Ties and Tie-Plates, of which the following is a specification.

My invention relates to improvements in rails and means for fastening the same to ties and tie-plates through keys in such manner that the keys, if forced between the rail-flange and the side support of the tie or tie-plate, will automatically take such a position that the pressure is distributed as nearly as possible evenly over the entire contact surfaces. For this purpose the key has on one side a fiat and on the other side a rounded contact surface. Tests and experience have proved to the inventor, that an angle which the flat contact surface forms with the horizontal plane should be about sixty degrees- Some attempts have been made before to fasten rails by means of differently shaped keys, but since the side supporting part of the tie-plate will spring or bend somewhat outward from the rail, the key cannot adjust itself automatically to the uneven pressure which is exerted through the deformation of the tie-plate.

The key shown in my invention can turn around the center of the roundin in order to insure practically even distribution of pressure on the entire contact surfaces. In this manner deformation of material is prevented, the contact surfaces remain in good condition and readjustments of the key will be rarely necessary, the life of the fastening being very much increased. The angle of the key should be about 1:70 to 1 :90 in order to insure an absolutely firm connection between rail and tie-plate and to do away with creeping of the rails without using any special means for this purpose.

In the accompanying drawings Figure l is a side View partly in section, and

Fig. 2 is a plan view of one form of my improved means for fastening rails to tieplates.

Fig. 3 is a side view partly in section of a modification.

Fig. 4 is a plan View of Fig. 3.

Figs. 5 and 6 are enlarged detail views Specification of Letters Patent.

Patented Feb. 12, 191

Application filed September 13, 1916. Serial Ne.'119,863.

of the forms shown in Figs. 1 and 3 re- Spe'ctively.

Fig. 7 is'a side view partly in section of another modification.

The form shown in Figs. 1, 2 and 5 is especially adapted for rails already in the track. The rail a has a flange b, the side Z) (Fig. 5) of which are rounded as usual. Keys 0 having a concave rounded contact surface 0 011 one side engage the sides I) of the rail flange. The other sides of said keys have flat contact surfaces 0 which engage flat inclined contact surfaces cl formed on the side supporting ribs (Z of tie plates 6. The tie plates 6 are secured to the ties g by means of bolts f.

In Figs. 8, I, and (5, the sides of the flange 12 have flat inclined contact surfaces b (Fig. 6) the keys 0 having corresponding fiat surfaces 0 which engage said sides, and rounded surfaces 0 which fit accurately the rounded inside surfaces 0Z of the side supporting ribs (Z of the tie plate 6 In Figs. 5 and 6 the lines 00 and a respectively show the horizontal pressure and the lines 2 and 2 respectively show the vertical pressure as components of the entire pressure 3 and y exerted on the keys. The inclination of the flat contact surfaces is preferably selected 2 :1, which gives the proportion 03:2:21.

Fig. 7 shows a construction similar to Figs. 3 and 6, adapted for steel ties with a tie-plate 6 having a hooked rib d on one side of the rail with an inclined contact surface and showing only one key 0 on the other side between the rail flange 6 andthe rib d.

The tie-plate 6 shown in Fig. 7 is inserted between projections 1 pressed upward into the top plate 9 of the tie in order to hold the tie-plate in firm position against lateral shifting, thereby doing away with all lateral shearing strain of the bolts 2' by which the tie-plate e is connected to the top-plate 9 The latter is formed with elongated holes 9 through which the heads 2" of the bolts 2' are inserted and then turned to engage the underside of the plate when drawn up by nuts '5 If the tie-plate is welded to the tie, the projection, pressed into the top-plate of the tie and the bolts are not necessary. If the side supports shown on the tie-plate are welded directly on the tie, the tie-plate is also not required.

What I claim and desire to secure, by Letters Patent is:

1. A railway rail securing means, comprising a tie-plate having a projection inclined to the base thereof, and a key, for insertion between the rail flange and said projection, having opposite flat and curved surfaces forming the only contacting surfaces of the key and operating to maintain the sides of the latter free from contact to permit the key to automatically accommodate itself to the inequalities of the opposed surfaces with which it contacts.

2. A railway rail securing means, comprising a tie-plate having a projection inclined to the base thereof, and a key, for insertion between the rail flange and said projection, having parallel sides and opposite flat and curved surfaces, said surfaces forming the only contacting surfaces of the key and operating to maintain the parallel sides out of contact with the tie plate to permit the key to automatically accommodate itself to the inequalities of the opposed surfaces with which it contacts.

3. The combination of a railway-rail, a tie-plate having a side support, and a key,

driven between the rail-flange and the sidesupport of the tie-plate, having parallel sides and a flat inclined contact surface pressing against a corresponding flat in clined contact surface at the side of the railflange and an opposite rounded contact surface pressing against a corresponding concave contact surface of the side support of the tie plate, the top and bottom of the keys being out of contact with the side support and rail flange.

4. The combination of a railway-rail, a

tie-plate having on one side a side support pressing directly on the rail flange and on the other side a side support, a key driven between the latter and the rail flange, the key having a rounded contact surface on one side, a fiat inclined contact surface on fioples 02 this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G3 

